@above, I think that's unfair to criticize the video game music, because so many beautiful contemporary pieces have been composed for them, especially by the Japanese (Nobuo Uematsu for instance). As long as it's piano, they're in the right place.
I know this thread is getting old, but I couldn't let it go without some Brahms. For me Brahms is perhaps the most sentimental composer and any of his later piano works (klavierstücke) deserve mention here. My favorite is probably either Op. 117 (really any of the three) or the famous Op. 118 No. 2 in A major. [/youtube]